.loading-box{
    position: fixed;
    z-index: 99999;
    width:100%;
    height:100%;
    top:0;
    left:0;
    background-color: rgba(0,0,0,.5)
}
.loading-box .loading{
    width:90px;
    height:50px;
    position: fixed;
    z-index: 9999999;
    top:50%;
    left:50%;
    margin-left:-45px;
    margin-top:-25px;
}
.loading-box .loading img{
    width:50px;
    height:50px;
    background-color: #fff;
    border-radius:50px;
    display: block;
    margin:0 auto;
}